Question 758907
QUESTION:  A.	What was the population in California in 2005?


You just substitute the values and compute A.



QUESTION:  B.	When will the population of California reach 40 million?


Solve for t before doing anything else.
{{{ln(A)=ln(36.1e^(0.0126t))}}}
{{{ln(A)=ln(36.1)+ln(e^(0.0126t))}}}
{{{ln(A)=ln(36.1)+0.0126t*ln(e)}}}
{{{ln(A)-ln(36.1)=0.0126t*1}}}
{{{highlight(t=(ln(A)-ln(36.1))/0.0126)}}}
Substitute the desired value for A and compute t.